20
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Electrical installation
Installer and user reference guide
127
REMA5+REYA8~20A7Y1B
VRV 5 heat recovery
4P687640-1 – 2022.07
5~12 HP
14~20 HP
a
b
b
b
b
a
Output cable (SVEO or SVS)(field supply)
b
Tie-wrap (accessory)
Alternate routing
INFORMATION
Sound data about the refrigerant leakage alarm are available in the technical data
sheet of the user interface. E.g. the BRC1H52* controller generates an alarm of 65 dB
(sound pressure, measured at 1 m distance from the alarm).
20.8 To check the insulation resistance of the compressor
NOTICE
If, after installation, refrigerant accumulates in the compressor, the insulation
resistance over the poles can drop, but if it is at least 1 MΩ, then the unit will not
break down.
▪
Use a 500 V mega-tester when measuring insulation.
▪
Do NOT use a mega-tester for low voltage circuits.
1
Measure the insulation resistance over the poles.
If
Then
≥1 MΩ
Insulation resistance is OK. This procedure is finished.
<1 MΩ
Insulation resistance is not OK. Go to the next step.
2
Turn ON the power and leave it on for 6 hours.
Result:
The compressor will heat up and evaporate any refrigerant in the
compressor.
3
Measure the insulation resistance again.
